4251601 has 2 divisors, whose sum is σ = 4251602. Its totient is φ = 4251600.

The previous prime is 4251589. The next prime is 4251617. The reversal of 4251601 is 1061524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3610000 + 641601 = 1900^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 4251601 - 2¹³ = 4243409 is a prime.

It is a super-2 number, since 2×4251601² = 36152222126402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4251631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125800 + 2125801.

It is an arithmetic number, because the mean of its divisors is an integer number (2125801).

Almost surely, 2^4251601 is an apocalyptic number.

It is an amenable number.

4251601 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251601 is an equidigital number, since it uses as much as digits as its factorization.

4251601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 4251601 is about 2061.9410757827. The cubic root of 4251601 is about 162.0009271908. Note that the first 3 decimals are identical.

The spelling of 4251601 in words is "four million, two hundred fifty-one thousand, six hundred one".